Home / 5,429.95-8,145.85-2,309.98

Finding the Fourth Proportional to 5,429.95, 8,145.85 and 2,309.98

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Solution

The fourth proportional to 5,429.95, 8,145.85 and 2,309.98 is: 3,465.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,429.95 : 8,145.85 = 2,309.98 : x
  2. Step 2: Convert to fraction form
    5,429.95/8,145.85 = 2,309.98/x
  3. Step 3: Cross multiply
    5,429.95x = 8,145.85 × 2,309.98
  4. Step 4: Simplify right side
    5,429.95x = 18,816,765.25
  5. Step 5: Solve for x
    x = 18,816,765.25/5,429.95
  6. Step 6: Final answer
    x = 3,465.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.